Automobile Engineering in ME
The main feature of Macpherson strut suspension is that

Non vertical external forces are supported by the suspension arms
The assembly is slightly more complicated in design
The vertical size of the suspension can be made more compact
The unsprung mass in lighter

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Automobile Engineering in ME
The advantage of having a tandem master cylinder arrangement in automobiles is that it

Enhances safety by serving two independent lines in a divided line brake circuit
Boosts the brake fluid pressure to reduce the force required to depress the brake pedal
Supplies equal fluid pressure to each line of a divided line brake circuit, thereby preventing the brakes from dragging on one side
Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss

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